content: /* ===========================================================
   * JFreeChart : a free chart library for the Java(tm) platform
   * ===========================================================
   *
   * (C) Copyright 2000-2012, by Object Refinery Limited and Contributors.
   *
   * Project Info:  http://www.jfree.org/jfreechart/index.html
   *
   * This library is free software; you can redistribute it and/or modify it
   * under the terms of the GNU Lesser General Public License as published by
   * the Free Software Foundation; either version 2.1 of the License, or
   * (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
   * License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
   * USA.
   *
   * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. 
   * Other names may be trademarks of their respective owners.]
   *
   * -----------------------
   * DataUtilitiesTests.java
   * -----------------------
   * (C) Copyright 2005-2009, by Object Refinery Limited and Contributors.
   *
   * Original Author:  David Gilbert (for Object Refinery Limited);
   * Contributor(s):   -;
   *
   * Changes
   * -------
   * 03-Mar-2005 : Version 1 (DG);
   * 28-Jan-2009 : Added tests for equal(double[][], double[][]) method (DG);
   * 28-Jan-2009 : Added tests for clone(double[][]) (DG);
   * 04-Feb-2009 : Added tests for new calculateColumnTotal/RowTotal methods (DG);
   *
   */
  
  package org.jfree.data;
  
  import org.junit.Test;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertFalse;
  import static org.junit.Assert.assertTrue;
  
  /**
   * Some tests for the {@link DataUtilities} class.
   */
  public class DataUtilitiesTest  {
  
  
  
      /**
       * Tests the createNumberArray2D() method.
       */
      @Test
      public void testCreateNumberArray2D() {
          double[][] d = new double[2][];
          d[0] = new double[] {1.1, 2.2, 3.3, 4.4};
          d[1] = new double[] {1.1, 2.2, 3.3, 4.4, 5.5};
          Number[][] n = DataUtilities.createNumberArray2D(d);
          assertEquals(2, n.length);
          assertEquals(4, n[0].length);
          assertEquals(5, n[1].length);
      }
  
      private static final double EPSILON = 0.000000001;
  
      /**
       * Some checks for the calculateColumnTotal() method.
       */
      @Test
      public void testCalculateColumnTotal() {
          DefaultKeyedValues2D table = new DefaultKeyedValues2D();
          table.addValue(1.0, "R0", "C0");
          table.addValue(2.0, "R0", "C1");
          table.addValue(3.0, "R1", "C0");
          table.addValue(4.0, "R1", "C1");
          assertEquals(4.0, DataUtilities.calculateColumnTotal(table, 0), EPSILON);
          assertEquals(6.0, DataUtilities.calculateColumnTotal(table, 1), EPSILON);
          table.setValue(null, "R1", "C1");
          assertEquals(2.0, DataUtilities.calculateColumnTotal(table, 1), EPSILON);
      }
  
      /**
       * Some checks for the calculateColumnTotal() method.
       */
      @Test
      public void testCalculateColumnTotal2() {
          DefaultKeyedValues2D table = new DefaultKeyedValues2D();
          table.addValue(1.0, "R0", "C0");
          table.addValue(2.0, "R0", "C1");
          table.addValue(3.0, "R1", "C0");
          table.addValue(4.0, "R1", "C1");
          assertEquals(4.0, DataUtilities.calculateColumnTotal(table, 0,
                  new int[] {0, 1}), EPSILON);
          assertEquals(1.0, DataUtilities.calculateColumnTotal(table, 0,
                  new int[] {0}), EPSILON);
          assertEquals(3.0, DataUtilities.calculateColumnTotal(table, 0,
                  new int[] {1}), EPSILON);
          assertEquals(0.0, DataUtilities.calculateColumnTotal(table, 0,
                  new int[] {}), EPSILON);
  
          assertEquals(6.0, DataUtilities.calculateColumnTotal(table, 1,
                  new int[] {0, 1}), EPSILON);
          assertEquals(2.0, DataUtilities.calculateColumnTotal(table, 1,
                  new int[] {0}), EPSILON);
          assertEquals(4.0, DataUtilities.calculateColumnTotal(table, 1,
                  new int[] {1}), EPSILON);
  
          table.setValue(null, "R1", "C1");
          assertEquals(2.0, DataUtilities.calculateColumnTotal(table, 1,
                  new int[] {0, 1}), EPSILON);
          assertEquals(0.0, DataUtilities.calculateColumnTotal(table, 1,
                  new int[] {1}), EPSILON);
      }
  
      /**
       * Some checks for the calculateRowTotal() method.
       */
      @Test
      public void testCalculateRowTotal() {
          DefaultKeyedValues2D table = new DefaultKeyedValues2D();
          table.addValue(1.0, "R0", "C0");
          table.addValue(2.0, "R0", "C1");
          table.addValue(3.0, "R1", "C0");
          table.addValue(4.0, "R1", "C1");
          assertEquals(3.0, DataUtilities.calculateRowTotal(table, 0), EPSILON);
          assertEquals(7.0, DataUtilities.calculateRowTotal(table, 1), EPSILON);
          table.setValue(null, "R1", "C1");
          assertEquals(3.0, DataUtilities.calculateRowTotal(table, 1), EPSILON);
      }
  
      /**
       * Some checks for the calculateRowTotal() method.
       */
      @Test
      public void testCalculateRowTotal2() {
          DefaultKeyedValues2D table = new DefaultKeyedValues2D();
          table.addValue(1.0, "R0", "C0");
          table.addValue(2.0, "R0", "C1");
          table.addValue(3.0, "R1", "C0");
          table.addValue(4.0, "R1", "C1");
          assertEquals(3.0, DataUtilities.calculateRowTotal(table, 0,
                  new int[] {0, 1}), EPSILON);
          assertEquals(1.0, DataUtilities.calculateRowTotal(table, 0,
                  new int[] {0}), EPSILON);
          assertEquals(2.0, DataUtilities.calculateRowTotal(table, 0,
                  new int[] {1}), EPSILON);
          assertEquals(0.0, DataUtilities.calculateRowTotal(table, 0,
                  new int[] {}), EPSILON);
  
          assertEquals(7.0, DataUtilities.calculateRowTotal(table, 1,
                  new int[] {0, 1}), EPSILON);
          assertEquals(3.0, DataUtilities.calculateRowTotal(table, 1,
                  new int[] {0}), EPSILON);
          assertEquals(4.0, DataUtilities.calculateRowTotal(table, 1,
                  new int[] {1}), EPSILON);
          assertEquals(0.0, DataUtilities.calculateRowTotal(table, 1,
                  new int[] {}), EPSILON);
          table.setValue(null, "R1", "C1");
          assertEquals(3.0, DataUtilities.calculateRowTotal(table, 1,
                  new int[] {0, 1}), EPSILON);
          assertEquals(0.0, DataUtilities.calculateRowTotal(table, 1,
                  new int[] {1}), EPSILON);
      }
  
      /**
       * Some tests for the equal(double[][], double[][]) method.
       */
      @Test
      public void testEqual() {
          assertTrue(DataUtilities.equal(null, null));
          
          double[][] a = new double[5][];
          double[][] b = new double[5][];
          assertTrue(DataUtilities.equal(a, b));
  
          a = new double[4][];
          assertFalse(DataUtilities.equal(a, b));
          b = new double[4][];
          assertTrue(DataUtilities.equal(a, b));
  
          a[0] = new double[6];
          assertFalse(DataUtilities.equal(a, b));
          b[0] = new double[6];
          assertTrue(DataUtilities.equal(a, b));
  
          a[0][0] = 1.0;
          assertFalse(DataUtilities.equal(a, b));
          b[0][0] = 1.0;
          assertTrue(DataUtilities.equal(a, b));
  
          a[0][1] = Double.NaN;
          assertFalse(DataUtilities.equal(a, b));
          b[0][1] = Double.NaN;
          assertTrue(DataUtilities.equal(a, b));
  
          a[0][2] = Double.NEGATIVE_INFINITY;
          assertFalse(DataUtilities.equal(a, b));
          b[0][2] = Double.NEGATIVE_INFINITY;
          assertTrue(DataUtilities.equal(a, b));
  
          a[0][3] = Double.POSITIVE_INFINITY;
          assertFalse(DataUtilities.equal(a, b));
          b[0][3] = Double.POSITIVE_INFINITY;
          assertTrue(DataUtilities.equal(a, b));
  
          a[0][4] = Double.POSITIVE_INFINITY;
          assertFalse(DataUtilities.equal(a, b));
          b[0][4] = Double.NEGATIVE_INFINITY;
          assertFalse(DataUtilities.equal(a, b));
          b[0][4] = Double.POSITIVE_INFINITY;
          assertTrue(DataUtilities.equal(a, b));
      }
  
      /**
       * Some tests for the clone() method.
       */
      @Test
      public void testClone() {
          double[][] a = new double[1][];
          double[][] b = DataUtilities.clone(a);
          assertTrue(DataUtilities.equal(a, b));
          a[0] = new double[] { 3.0, 4.0 };
          assertFalse(DataUtilities.equal(a, b));
          b[0] = new double[] { 3.0, 4.0 };
          assertTrue(DataUtilities.equal(a, b));
  
          a = new double[2][3];
          a[0][0] = 1.23;
          a[1][1] = Double.NaN;
          b = DataUtilities.clone(a);
          assertTrue(DataUtilities.equal(a, b));
  
          a[0][0] = 99.9;
          assertFalse(DataUtilities.equal(a, b));
          b[0][0] = 99.9;
          assertTrue(DataUtilities.equal(a, b));
      }
  
  }
  